All Scheduled Events

July, 07/26/2016
Events and times subject to change

July 27, 2016 Wednesday 3:00 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Other
Don Page
University of Alberta

Naked Firewalls

In the firewall proposal, it is assumed that the firewall lies near the event horizon and should not be observable except by infalling observers, who are presumably terminated at the firewall. However, if the firewall is located near where the horizon would have been, based on the spacetime evolution up to that time, later quantum fluctuations of the Hawking emission rate can cause the `teleological' event horizon to have migrated to the inside of the firewall location, rendering the firewall naked. In principle, the firewall can be arbitrarily far outside the horizon. This casts doubt about the notion that firewalls are the `most conservative' solution to the information loss paradox.


August 17, 2016 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal HEP Talk
Zac Kenton
Queen Mary University of London

The Separate Universe Approach to Soft Limits

In this talk I'll calculate soft limits of n-point inflationary correlation functions using separate universe techniques. Our approach naturally allows for multiple fields and leads to an elegant diagrammatic approach. We apply this to the bispectrum and trispectrum, giving explicit formulae for all possible single- and double-soft limits. When compared to previous work on the bispectrum we find a 20% theoretical correction to observable parameters relevant for future cosmological experiments. We also investigate consistency relations and present an infinite tower of inequalities between soft correlation functions which generalise the Suyama-Yamaguchi inequality.


October 4, 2016 Tuesday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Peter Garnavich
Notre-Dame

TBA (SN-related)



October 5, 2016 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Alexander Penin
University of Alberta

High energy limit of gauge theories beyond Sudakov approximation



October 12, 2016 Wednesday 8:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Klosk Lecture Series
TBA TBA

Klosk Lecture Series - Event all day


October 13, 2016 Thursday 8:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Klosk Lecture Series

Klosk Lecture Series - Event All Day


October 14, 2016 Friday 8:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Klosk Lecture Series

Klosk Lecture Series - Event All Day


October 19, 2016 Wednesday 3:00 PM  +
Meyer 6th Floor CSMR Area
Soft Condensed Matter Seminars (csmr)


Chinedum Osuji
Yale University

TBA



November 9, 2016 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Jnan Maharana
Institute of Physics, Bhubaneswar

tba



November 16, 2016 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Maxim Pospelov
Perimeter and Victoria

TBA